Padres vs Diamondbacks Prediction 26 September 2026
📡 San Diego head into the final weekend of the regular season as one of the hottest clubs in the league. The Padres have taken nine of their last ten games and boast a 46-29 record at home. Arizona are also enjoying a strong run-going 6-4 over their most recent ten-so this matchup is far from a walkover. Casey Mize and Brandon Pfaadt are set to start on the mound, but with both teams in good form, current momentum could prove more decisive than the pitchers’ season-long stats.
San Diego have won six out of their last ten games and consistently rack up big scores against Arizona’s pitching.
📊 San Diego have claimed victory in six of the last ten head-to-head clashes. This season, the Padres have already beaten Arizona 6-4, 4-1, 10-4, 9-4, and 5-1, with three of those five wins coming by at least a four-run margin. At Petco Park, San Diego have taken two of four summer matchups, including a commanding 10-4 result.
Head-to-head statistics Padres - Diamondbacks

The Padres head into the final weekend having won nine of their last ten games.
The Padres are enjoying their best offensive stretch of the season. Just a few days ago, they strung together three straight games with at least eight runs and now head into the decisive phase of the wild card race with hardly any setbacks. Fernando Tatis Jr., Jackson Merrill, and Xander Bogaerts are all delivering at the plate, and San Diego have looked significantly more consistent at home than on the road for most of the year.
Match Results: San Diego Padres

Faadt is capable of keeping things under control, but September has already seen him suffer a major setback.
The Diamondbacks have also picked up momentum in September, remaining a threat thanks to their lineup depth. Over their last ten games, they boast a solid 6-4 record, though their performance on the road has been noticeably weaker than at home this season. In their series against San Diego, Arizona have already shown they can win with strong pitching, but when the game opens up, the advantage has often swung toward the Padres’ more explosive offense.
Match Results: Arizona Diamondbacks
⚾ Starting Pitchers
Casey Mize has been inconsistent throughout September, surrendering 14 earned runs over his last 17.2 innings across four starts. His most recent outing against Miami was particularly rough-he was tagged for five runs, five hits, and issued five walks in just three innings. Despite Mize’s struggles on the mound, San Diego have managed to win three of those four games, with their offense and bullpen stepping up to offset the shaky starts.
Brandon Pfaadt enters with a 3.72 ERA and a 1.17 WHIP. In his three September starts, he’s allowed ten earned runs over 17.1 innings-giving up one to the Yankees, six to Texas, and three to Houston. Statistically, Pfaadt’s current form looks more reliable than Mize’s, but he hasn’t been immune to blow-up outings either.
⭐ Editor’s Prediction
The opening pitching matchup doesn’t give San Diego a clear edge-Mize has struggled with early runs in September. Still, the Padres have thrived by overcoming rough starts and responding with firepower at the plate. They’ve won nine of their last ten games, boast a strong home record, and lead the recent head-to-head series 6-4. Faadt is also prone to shaky openings, and against this San Diego lineup, a single bad inning could swing the game. If the score is tied after five innings, the Padres’ bullpen and home-field advantage tip the scales further in their favor. We’re backing a San Diego Padres win.
